Abstract
As one of the most important parts of electricity system, distribution system plays the role of connecting customers and power system. This paper first explains the basic concept of the power supply reliability of electricity system, analyzes the features of the study on the reliability of electricity system, and explains the indicators affecting the power supply system of distribution system. Then, we analyze the reasons for power outage of distribution system, including scheduled power outage and failure power outage, thus identifies the factors affecting the power supply reliability of distribution system. Finally, using grey correlation method, it works out the grey correlation coefficient between power supply reliability and each influencing factor, and in turn obtains the key factors affecting the reliability of distribution system as per the sequencing of grey correlation coefficient, thus provides scientific and useful references for power utilities to develop reliability improvement strategy.
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